The gunman, Mahipal, has been posted with the judge for the past one-and-a-half years.

Highlights

Victims have been taken to the hospital

Attacker has been arrested, being questioned, say police

Judge's son is seriously injured, say police

The wife of a judge who was shot at by his personal security officer in a busy market in Gurgaon on Saturday afternoon died during treatment this morning, news agency ANI reported. The judge's 18-year-old son was also shot at, and the boy is critical.

The incident took place around 3:30 pm near Arcadia Market in Sector 49, Gurgaon, where the wife and son of additional sessions judge Krishan Kant Sharma had gone shopping.

The gunman first shot the wife and then the sonand tried to drag him in the car. But when he couldn't, he left them on the road and drove away in the same car, shows the video footage captured by eyewitnesses from their cellphones.

"The reason of her death was excessive bleeding due to the bullet wound. Her post-mortem was conducted by a team of three doctors," a doctor at Medanta Hospital said, news agency ANI reported.

On his way, he called the judge to say, "I have shot your wife and son". He made two more calls telling people about the shooting, including his mother.

The woman has been identified as Ritu, 38, and her son Dhruv.

The gunman, Mahipal Singh, had been posted with the judge for the past two years.

After shooting at them, Mahipal reached a police station where he fired again, before fleeing from there. The Station House Officer tried to catch hold of him but in vain. He was arrested from Faridabad a little while later.

"An additional sessions judge's wife and son were shot at. They have been admitted and the doctors have taken them for a procedure," said DCP Gurgaon (East) on Saturday.

The police say they are interrogating Mahipal to determine the reason behind the shooting.

Initial investigations suggest that he was suffering from depression and was upset at the "misbehaviour" by the judge's family. Mahipal Singh belongs to Mahendragarh in Haryana. His wife is a teacher and he has two children - seven and three years old.